Removal of 4-chlorophenol from polluted water by aluminum-iron alloys

Wu, Shangze1,2; Tang, Ka1,2; Zhang, Jingqi1,2; Chen, Xi1,2; Hu, Hanjun1,2; Hu, Qing3; Yang, Xiao Jin1,2

2019-09-15

10.2166/wst.2019.349

WATER SCIENCE AND TECHNOLOGY   影响因子和分区

0273-1223

1996-9732

Chlorophenols are extremely toxic to the environment and recalcitrant to biological degradation. Herein chemical degradation of 4-chlorophenol (4-CP) from aqueous solutions by zero-valent aluminum (Al), zero-valent iron (Fe), Al and Fe mixtures (Al/Fe mass ratio 90/10, labeled as Al/Fe10) and Al-Fe alloy (Al/Fe mass ratio 90/10, labeled as Al-Fe10) were investigated. No removal was found for 50 mg center dot L-1 4-CP under anoxic conditions at initial pH 2.5 during a period of 10 hrs while 56%, 83%, 78% and 99% of 4-CP were removed by Fe, Al, Al/Fe10 and Al-Fe10, respectively under aeration conditions. The removal of 4-CP by Al/Fe10 mixtures was primarily in the Fe mode in the beginning 4 h and then transitioned to the Al mode. The removal of 4-CP by Al-Fe10 alloy was accomplished via two intermediate products, hydroquinone (HQ) and 4-chlorocatechol (4-CC), and it was speculated that reactive oxygen species and hydroxyl radicals (center dot OH) play an important role in the degradation of 4-CP and that Al-Fe intermetallic compounds might catalyze the reactions. This study demonstrates that alloying Al with Fe offers a promising strategy for developing new materials for water and wastewater remediation.

4-chlorophenol oxidation aluminum alloys water treatment zero-valent metals

SCI ; EI

英语

其他

Fundamental Research Funds for the Central Universities[JD1814]

Engineering ; Environmental Sciences & Ecology ; Water Resources

Engineering, Environmental ; Environmental Sciences ; Water Resources

WOS:000501220100009

IWA PUBLISHING

20195207916526

Aluminum alloys ; Aluminum compounds ; Binary alloys ; Chemicals removal (water treatment) ; Iron compounds ; Mixtures ; Phenols ; Reaction intermediates ; Water pollution ; Water treatment

Water Treatment Techniques:445.1 ; Water Pollution:453 ; Aluminum Alloys:541.2 ; Iron Alloys:545.2 ; Chemical Products Generally:804 ; Organic Compounds:804.1

ENVIRONMENT/ECOLOGY

Web of Science

1.Beijing Univ Chem Technol, Beijing Key Lab Membrane Sci & Technol, Beijing 100029, Peoples R China
2.Beijing Univ Chem Technol, Dept Environm Sci & Engn, Beijing 100029, Peoples R China
3.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China

Wu, Shangze,Tang, Ka,Zhang, Jingqi,et al. Removal of 4-chlorophenol from polluted water by aluminum-iron alloys[J]. WATER SCIENCE AND TECHNOLOGY,2019,80(6):1099-1106.

Wu, Shangze.,Tang, Ka.,Zhang, Jingqi.,Chen, Xi.,Hu, Hanjun.,...&Yang, Xiao Jin.(2019).Removal of 4-chlorophenol from polluted water by aluminum-iron alloys.WATER SCIENCE AND TECHNOLOGY,80(6),1099-1106.

Wu, Shangze,et al."Removal of 4-chlorophenol from polluted water by aluminum-iron alloys".WATER SCIENCE AND TECHNOLOGY 80.6(2019):1099-1106.