Results 41 to 50 of about 1,420,567 (335)

Reactive aldehyde chemistry explains the missing source of hydroxyl radicals

Nature Communications
Hydroxyl radicals (OH) determine the tropospheric self-cleansing capacity, thus regulating air quality and climate. However, the state-of-the-art mechanisms still underestimate OH at low nitrogen oxide and high volatile organic compound regimes even ...
Xinping Yang, Haichao Wang, Keding Lu, Xuefei Ma, Zhaofeng Tan, Bo Long, Xiaorui Chen, Chunmeng Li, Tianyu Zhai, Yang Li, Kun Qu, Yu Xia, Yuqiong Zhang, Xin Li, Shiyi Chen, Huabin Dong, Limin Zeng, Yuanhang Zhang   +17 more
doaj   +1 more source

Strategies of selective electroreduction of aqueous nitrate to N2 in chloride-free system: A critical review

Green Energy & Environment
Electroreduction of nitrate has been gaining wide attention in recent years owing to it's beneficial for converting nitrate into benign N2 from the perspective of electrocatalytic denitrification or into value-added ammonia from the perspective of ...
Fukuan Li, Weizhe Zhang, Peng Zhang, Ao Gong, Kexun Li   +4 more
doaj   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Modulating biochar compositions to maximize synergy between contaminant binding and transformation: the critical role of carbonates and implications for in situ groundwater remediation

Biochar
Dealing with groundwater impacted by persistent, low-concentration chlorinated solvents is a major challenge for site remediation, as technologies designed for fast contaminant removal or destruction often are not cost-effective.
Lin Duan, Zicui Gong, Yang Li, Tianchi Cao, Tong Zhang, Wei Chen   +5 more
doaj   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Mid-IR spectrometer for mobile, real-time urban NO₂ measurements [PDF]

Atmospheric Measurement Techniques, 2018
Detailed knowledge about the urban NO2 concentration field is a key element for obtaining accurate pollution maps and individual exposure estimates. These are required for improving the understanding of the impact of ambient NO2 on human health and ...
P. M. Hundt, M. Müller, M. Mangold, M. Mangold, B. Tuzson, P. Scheidegger, H. Looser, H. Looser, C. Hüglin, L. Emmenegger   +9 more
doaj   +1 more source

A Transnational Perspective on Extending NEPA: The Convention on Environmental Impact on Assessment in a Transboundary Context [PDF]

, 1995
Introduction In recent years, the potential adverse impacts of transboundary pollution have received heightened attention both domestically and abroad.
Battle, Laura Carlan
core   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

External and internal human exposure to PFOA and HFPOs around a mega fluorochemical industrial park, China: Differences and implications

Environment International, 2021
Hexafluoropropylene oxide dimer and trimer acids (HFPO-DA and HFPO-TA) are used as alternatives to legacy perfluorooctanoic acid (PFOA); however, little is known about their human exposure risks.
Xuemin Feng, Xin Chen, Yi Yang, Liping Yang, Yumin Zhu, Guoqiang Shan, Lingyan Zhu, Shufeng Zhang   +7 more
doaj   +1 more source