Resource Type

Journal Article 14

Year

2023 1

2022 1

2021 3

2020 1

2018 1

2017 2

2015 4

2014 1

open ︾

Keywords

2 2

4 2

adsorption 2

debromination 2

2′ 1

4′-tetrabromodiphenyl ether (BDE-47) 1

6-trichlorophenol 1

Dehalococcoides 1

Ascorbic acid 1

BDE-47 1

Bio-RD-PAO 1

Bioremediation 1

Carbon tetrachloride 1

Claisen rearrangement 1

Co-contamination 1

Competition for electrons 1

Complete attenuation 1

Debromination 1

Denitrification 1

Dye degradation 1

open ︾

Search scope:

排序： Display mode:

Enhanced debromination of 2,2′,4,4′-tetrabromodiphenyl ether (BDE-47) by zero-valent zinc with ascorbic

Chaojin Jiang, Xiaoqian Jiang, Lixun Zhang, Yuntao Guan

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-020-1224-2

Abstract: Highly efficient debromination of BDE-47 was achieved in the ZVZ/AA system.BDE-47 debromination by the ZVZ/AA can be applied to a wide range of pH.Reduction mechanism of BDE-47 debromination by the ZVZ/AA system was proposed.The high debromination of BDE-47 was mainly attributed to the effect of AA that inhibits the formationThese results suggested that the ZVZ/AA system has the potential for highly efficient debromination of

Keywords： 2     2′     4     4′-tetrabromodiphenyl ether (BDE-47)     Ascorbic acid     Reductive debromination     Zero-valent zinc    

HTML PDF Collect

Integration of microbial reductive dehalogenation with persulfate activation and oxidation (Bio-RD-PAO

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1457-8

Abstract:

•Bio-RD-PAO can effectively and extensively remove organohalides.

Keywords： Bio-RD-PAO     Microbial reductive dehalogenation     Persulfate     Organohalide respiration     Complete attenuation    

HTML PDF Collect

Electrocatalytic debromination of BDE-47 at palladized graphene electrode

Hongtao YU, Bin MA, Shuo CHEN, Qian ZHAO, Xie QUAN, Shahzad AFZAL

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 2,   Pages 180-187 doi: 10.1007/s11783-013-0552-x

Abstract: The debromination ability of Ti/Gr/Pd electrodes was investigated using BDE-47 as a target pollutantAlmost all of the BDE-47 was removed in the debromination reaction on the Ti/Gr/Pd electrode at -0.5Although the debromination rate was slightly slower at -0.3 V than that under -0.5 V, the current efficiency

Keywords： graphene     palladium     debromination     BDE-47    

HTML PDF Collect

Development and characterization of an anaerobic microcosm for reductive dechlorination of PCBs

Dawei Liang, Shanquan Wang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0939-1

Abstract: 4.99 × 10 ±0.32 × 10 copies mL after 120 days of incubation, suggesting that play a major role in reductiveThis study could prove the feasibility of anaerobic reductive culture enrichment for the dehalogenation

Keywords： Polychlorinated biphenyls (PCBs)     Microbial reductive dechlorination     Dehalococcoides     Pathway    

HTML PDF Collect

Size and shape effects of MnFeO nanoparticles as catalysts for reductive degradation of dye pollutants

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5,   Pages 108-171 doi: 10.1007/s11783-021-1396-4

Abstract: three kinds of MnFe2O4 NPs with distinctive sizes and shapes as catalysts for reductive

Keywords： Dye degradation     MnFe2O4 nanoparticles     Size and shape-control    

HTML PDF Collect

Competition for electrons between reductive dechlorination and denitrification

Lifeng Cao, Weihua Sun, Yuting Zhang, Shimin Feng, Jinyun Dong, Yongming Zhang, Bruce E. Rittmann

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0959-x

Abstract: In this work, simultaneous reductive dechlorination of TCP and denitrification of nitrate or nitrite

Keywords： Competition for electrons     Denitrification     Reductive dechlorination     Bioremediation     Nitrate     2     4     6-trichlorophenol    

HTML PDF Collect

Fluoroalcohol-mediated reductive iodonio-Claisen rearrangement: Synthesis of complex

Hem Raj Khatri,Hai Nguyen,James K. Dunaway,Jianglong Zhu

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 3,   Pages 359-368 doi: 10.1007/s11705-015-1530-6

Abstract: Reductive iodonio-Claisen rearrangement (RICR) involving -iodanes and allyl or substituted-allyl silanes

Keywords： hypervalent iodine     allylation     fluoroalcohol     Claisen rearrangement     heterocycles    

HTML PDF Collect

Effect of humic acid and metal ions on the debromination of BDE209 by nZVM prepared from steel pickling

Yuling CAI,Bin LIANG,Zhanqiang FANG,Yingying XIE,Eric Pokeung TSANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 879-887 doi: 10.1007/s11783-014-0764-8

Abstract: As a promising in situ remediation technology, nanoscale zero-valent iron (nZVI) can remove polybrominated diphenyl ethers such as decabromodiphenyl ether (BDE209) effectively, However its use is limited by its high production cost. Using steel pickling waste liquor as a raw material to prepare nanoscale zero-valent metal (nZVM) can overcome this deficiency. It has been shown that humic acid and metal ions have the greatest influence on remediation. The results showed that nZVM and nZVI both can effectively remove BDE209 with little difference in their removal efficiencies, and humic acid inhibited the removal efficiency, whereas metal ions promoted it. The promoting effects followed the order Ni >Cu >Co and the cumulative effect of the two factors was a combination of the promoting and inhibitory individual effects. The major difference between nZVM and nZVI lies in their crystal form, as nZVI was found to be amorphous while that of nZVM was crystal. However, it was found that both nZVM and nZVI removed BDE209 with similar removal efficiencies. The effects and cumulative effects of humic acid and metal ions on nZVM and nZVI were very similar in terms of the efficiency of the BDE209 removal.

Keywords： steel pickling waste liquor     nanoscale zero-valet metal     nanoscale zero-valent iron     humic acid     metal ion    

HTML PDF Collect

Enhanced reductive degradation of carbon tetrachloride by carbon dioxide radical anion-based sodium percarbonate

Wenchao Jiang, Ping Tang, Shuguang Lu, Xiang Zhang, Zhaofu Qiu, Qian Sui

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 2, doi: 10.1007/s11783-017-0987-6

Abstract: CT degradation was proposed by reductive C-Cl bond splitting.

Keywords： Carbon tetrachloride     Sodium percarbonate     Formic acid     Reductive radicals     Groundwater    

HTML PDF Collect

Reductive amination of -hexanol to -hexylamine over Ni–Ce/-AlO catalysts

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 82-92 doi: 10.1007/s11705-022-2181-z

Abstract: The amination of alkyl alcohols is one of the most promising paths in synthesis of aliphatic amines. Herein, cerium doped nickel-based catalysts were synthesized and tested in a gas-phase amination of n-hexanol to n-hexylamine. It was found that the activity of the Ni/γ-Al2O3 catalyst is significantly improved by doping an appropriate amount of cerium. The presence of cerium effectively inhibits the agglomeration of nickel particle, resulting in better Ni dispersion. As Ni particle size plays critical role on the catalytic activity, higher turnover frequency of n-hexanol amination was achieved. Cerium doping also improves the reduction ability of nickel and enhances the interactions between Ni and the catalyst support. More weak acid sites were also found in those cerium doped catalysts, which promote another key step—ammonia dissociative adsorption in this reaction system. The overall synergy of Ni nanoparticles and acid sites of this Ni–Ce/γ-Al2O3 catalyst boosts its superior catalytic performance in the amination of n-hexanol.

Keywords： amination     alcohol     cerium     nickel     acidity     interaction    

HTML PDF Collect

NOx and H2S formation in the reductive zone of air-staged combustion of

Jinzhi CAI, Dan LI, Denggao CHEN, Zhenshan LI

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 4-13 doi: 10.1007/s11708-020-0804-y

Abstract: This paper focused on the investigation of reductive gases in the formation of NO and H S in the reductive

Keywords： blended coal combustion     NOx formation     H2S formation     air staged combustion    

HTML PDF Collect

Removal of decabromodiphenyl ether (BDE-209) by sepiolite-supported nanoscale zerovalent iron

Rongbing FU,Na MU,Xiaopin GUO,Zhen XU,Dongsu BI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 867-878 doi: 10.1007/s11783-015-0800-3

Abstract: The degradation of BDE-209 occurred in a stepwise debromination manner, which followed pseudo-first-orderDebromination pathways of BDE-209 with sepiolite-supported nZVI were proposed based on the identified

Keywords： sepiolite-supported nanoscale zerovalent iron     decabromodiphenyl ether     debromination     adsorption     mechanism    

HTML PDF Collect

Effective remediation of organic-metal co-contaminated soil by enhanced electrokinetic-bioremediation process

Fu Chen, Qi Zhang, Jing Ma, Qianlin Zhu, Yifei Wang, Huagen Liang

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1401-y

Abstract: Abstract • A new EK-BIO technology was developed to decontaminate e-waste contaminated soil. • Adding sodium citrate in electrolyte was a good choice for decontaminating the soil. • The system has good performance with low cost. This work investigates the influence of electrokinetic-bioremediation (EK-BIO) on remediating soil polluted by persistent organic pollutants (POPs) and heavy metals (mainly Cu, Pb and Ni), originated from electronic waste recycling activity. The results demonstrate that most of POPs and metals were removed from the soil. More than 60% of metals and 90% of POPs in the soil were removed after a 30-day EK-BIO remediation assisted by citrate. A citrate sodium concentration of 0.02 g/L was deemed to be suitable because higher citrate did not significantly improve treatment performance whereas increasing dosage consumption. Citrate increased soil electrical current and electroosmotic flow. After remediation, metal residues mainly existed in stable and low-toxic states, which could effectively lower the potential hazard of toxic metals to the surrounding environment and organisms. EK-BIO treatment influenced soil microbial counts, dehydrogenase activity and community structure.

Keywords： Electrokinetic     Co-contamination     Debromination    

HTML PDF Collect

Iron-carbon composite microspheres prepared through a facile aerosol-based process for the simultaneous adsorption and reduction of chlorinated hydrocarbons

Bhanukiran SUNKARA,Yang SU,Jingjing ZHAN,Jibao HE,Gary L. MCPHERSON,Vijay T. JOHN

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 939-947 doi: 10.1007/s11783-015-0807-9

Abstract: Iron-carbon (Fe-C) composite microspheres prepared through a facile aerosol-based process are effective remediation agents for the simultaneous adsorption and reduction of chlorinated hydrocarbons. Complete dechlorination was achieved for the class of chlorinated ethenes that include tetrachloroethylene (PCE), trichloroethylene (TCE), and -1,2-dicloroethylene (c-DCE, t-DCE), 1,1-dichloroethylene (1,1-DCE) and, vinyl chloride (VC). The Fe-C particles potentially provides multi-functionality with requisite characteristics of adsorption, reaction, and transport for the effective in situ remediation of chlorinated hydrocarbons. The carbon support immobilizes the ferromagnetic iron nanoparticles onto its surface, thereby inhibiting aggregation. The adsorptive nature of the carbon support prevents the release of toxic intermediates such as the dichloroethylenes and vinyl chloride. The adsorption of chlorinated ethenes on the Fe-C composites is higher (>80%) than that of humic acid (<35%) and comparable to adsorption on commercial activated carbons (>90%). The aerosol-based process is an efficient method to prepare adsorptive-reactive composite particles in the optimal size range for transport through the porous media and as effective targeted delivery agents for the in situ remediation of soil and groundwater contaminants.

Keywords： chlorinated ethene     iron-carbon     aerosol     adsorption     reductive dechlorination    

HTML PDF Collect

Title Author Date Type Operation

Enhanced debromination of 2,2′,4,4′-tetrabromodiphenyl ether (BDE-47) by zero-valent zinc with ascorbic

Chaojin Jiang, Xiaoqian Jiang, Lixun Zhang, Yuntao Guan

Journal Article

Integration of microbial reductive dehalogenation with persulfate activation and oxidation (Bio-RD-PAO

Journal Article

Electrocatalytic debromination of BDE-47 at palladized graphene electrode

Hongtao YU, Bin MA, Shuo CHEN, Qian ZHAO, Xie QUAN, Shahzad AFZAL

Journal Article

Development and characterization of an anaerobic microcosm for reductive dechlorination of PCBs

Dawei Liang, Shanquan Wang

Journal Article

Size and shape effects of MnFeO nanoparticles as catalysts for reductive degradation of dye pollutants

Journal Article

Competition for electrons between reductive dechlorination and denitrification

Lifeng Cao, Weihua Sun, Yuting Zhang, Shimin Feng, Jinyun Dong, Yongming Zhang, Bruce E. Rittmann

Journal Article

Fluoroalcohol-mediated reductive iodonio-Claisen rearrangement: Synthesis of complex

Hem Raj Khatri,Hai Nguyen,James K. Dunaway,Jianglong Zhu

Journal Article

Effect of humic acid and metal ions on the debromination of BDE209 by nZVM prepared from steel pickling

Yuling CAI,Bin LIANG,Zhanqiang FANG,Yingying XIE,Eric Pokeung TSANG

Journal Article

Enhanced reductive degradation of carbon tetrachloride by carbon dioxide radical anion-based sodium percarbonate

Wenchao Jiang, Ping Tang, Shuguang Lu, Xiang Zhang, Zhaofu Qiu, Qian Sui

Journal Article

Reductive amination of -hexanol to -hexylamine over Ni–Ce/-AlO catalysts

Journal Article

NOx and H2S formation in the reductive zone of air-staged combustion of

Jinzhi CAI, Dan LI, Denggao CHEN, Zhenshan LI

Journal Article

Removal of decabromodiphenyl ether (BDE-209) by sepiolite-supported nanoscale zerovalent iron

Rongbing FU,Na MU,Xiaopin GUO,Zhen XU,Dongsu BI

Journal Article

Effective remediation of organic-metal co-contaminated soil by enhanced electrokinetic-bioremediation process

Fu Chen, Qi Zhang, Jing Ma, Qianlin Zhu, Yifei Wang, Huagen Liang

Journal Article

Iron-carbon composite microspheres prepared through a facile aerosol-based process for the simultaneous adsorption and reduction of chlorinated hydrocarbons

Bhanukiran SUNKARA,Yang SU,Jingjing ZHAN,Jibao HE,Gary L. MCPHERSON,Vijay T. JOHN

Journal Article