Results 51 to 60 of about 1,890,419 (127)

Comprehensive review on the use of carrier-material-supported bimetallic nanoscale zero-valent iron to enhance nitrate removal and N selectivity

Adsorption Science & Technology
Nitrate pollution originates from wastewater discharge and agricultural and industrial activities and is becoming a serious environmental problem. Current treatment methods often need help achieving high efficiency while maintaining reasonable costs ...
Huu-Khiem Nguyen, Chih-Chi Yang, Yung-Pin Tsai   +2 more
doaj   +1 more source

Transport Characteristics of Green-Tea Nano-scale Zero Valent Iron as a Function of Soil Mineralogy

Chemical Engineering Transactions, 2012
The transport characteristics of iron nanoparticles prepared with a green tea, polyphenol-rich solution, were investigated for two granular media, pure silica sand and sand coated with aluminium hydroxide. The GT-nZVI injection caused a sharp decrease in
M. Chrysochoou, M. Mcguire, G. Dahal
doaj   +1 more source

Dual‐Function Electrocatalysis: Simultaneous Wastewater Remediation and Hydrogen Evolution—A Comprehensive Review

Carbon Energy, EarlyView.
Replacing the oxygen evolution reaction with the electro‐oxidation of pollutants and waste streams offers an energy‐efficient route for simultaneous hydrogen production and pollutant remediation. This review summarizes the reaction mechanisms, catalyst design principles, and emerging paired‐electrolysis strategies that govern activity, selectivity ...
Safa Al‐Yahyaey, Rashid Al‐Hajri, Ala'a H. Al‐Muhtaseb, Hussein A. Younus, Mohammed Al‐Abri   +4 more
wiley   +1 more source

Clay-supported nanoscale zero-valent iron composite materials for the remediation of contaminated aqueous solutions: A review [PDF]

, 2017
Highlights\ud \ud - A review of contaminants removed by clay-nZVI composite materials from aqueous solutions is made.\ud \ud - Reaction mechanisms of the materials with contaminants are discussed.\ud \ud - Excellent removal efficiencies of ...
Speight, Robert, Li, Shizhong, Zhu, Jianxi, Xi, Yunfei, Ezzatahmadi, Naeim, Ayoko, Godwin A., Li, Jihong, Yan, Cheng, Millar, Graeme J.   +8 more
core   +1 more source

Nano-scale Zero Valent Iron (nZVI) Treatment of Marine Sediments Slightly Polluted by Heavy Metals

Chemical Engineering Transactions, 2017
Zero valent iron (ZVI) is an electron donor that is used to reduce or indirectly oxidize several contaminants in soil and groundwater (e.g. halogenated species).
S. De Gisi, D. Minetto, G. Lofrano, G. Libralato, B. Conte, F. Todaro, M. Notarnicola   +6 more
doaj   +1 more source

Removal of Antibiotics from Aqueous Solutions by Bentonite Supported-Nanoscale Zero-Valent Iron

International Journal of Pioneering Technology and Engineering, 2022
Nowadays, antibiotics are extensively used in human and animal medicine. The unconscious consumption of antibiotics and their mixing with water sources without adequate treatment have caused environmental problems. Several chemical and physical treatment
Gülşah Başkan
doaj   +1 more source

Harnessing metallurgical slags for water treatment: Advances in organic pollutant degradation with and without hydrogen generation, and in heavy metal removal

The Canadian Journal of Chemical Engineering, EarlyView.
Valorization of ferrous and non‐ferrous metallurgical slags for water treatment: modification routes and applications in advanced oxidation, electrochemical processes, and adsorption within a circular economy framework. Abstract The removal of recalcitrant organic pollutants and heavy metals from water remains a critical challenge for safe drinking ...
Flor‐Tania Escárcega‐Olivares, Tania‐Ariadna García‐Mejía, Rosa‐María Ramírez‐Zamora   +2 more
wiley   +1 more source

Remediation of Chlorpyrifos-Contaminated Soils by Laboratory-Synthesized Zero-Valent Nano Iron Particles: Effect of pH and Aluminium Salts

Journal of Chemistry, 2013
Degradation of the insecticide chlorpyrifos in contaminated soils was investigated using laboratory synthesized zero-valent nano iron (ZVNI) particles. The synthesized ZVNI particles were characterized as nanoscale sized by scanning electron microscopy ...
A. Vijaya Bhaskar Reddy, V. Madhavi, K. Gangadhara Reddy, G. Madhavi   +3 more
doaj   +1 more source

Substantially enhanced anaerobic reduction of nitrobenzene by biochar stabilized sulfide-modified nanoscale zero-valent iron: Process and mechanisms

Environment International, 2019
Nanoscale zero-valent iron (nZVI), although being increasingly used in anaerobic systems for strengthening the removal of various refractory pollutants, is limited by various inherent drawbacks, such as easy precipitation, passivation, poor mass and ...
Dejin Zhang, Jinyou Shen, Hefei Shi, Guanyong Su, Xinbai Jiang, Jiansheng Li, Xiaodong Liu, Yang Mu, Lianjun Wang   +8 more
doaj   +1 more source

Recent Advances of Perovskite Oxides for Air Pollution Control Chemistry: The Closed Loop From Design to Application

EcoEnergy, EarlyView.
This review summarizes a descriptor‐guided framework for linking theoretical calculations, in situ/operando characterization, synthesis regulation, and application screening in functional materials. Emphasis is placed on dynamic structure–property relationships that enable low‐cost material design with enhanced activity, stability, and environmental ...
Yanyu Jin, Zezheng Tang, Hengfan Wu, Xing Yuan, Zongxiang Yang, Weijia An, Wenquan Cui, Xianguang Meng, Ying Xu, Junhua Li   +9 more
wiley   +1 more source