Removal of hexavalent chromium via biochar-based adsorbents: State-of-the-art, challenges, and future perspectives

R Sinha, R Kumar, P Sharma, N Kant, J Shang… - Journal of …, 2022‏ - Elsevier
Chromium originates from geogenic and extensive anthropogenic activities and significantly
impacts natural ecosystems and human health. Various methods have been applied to …

Application of conventional and emerging low-cost adsorbents as sustainable materials for removal of contaminants from water

JO Eniola, B Sizirici, Y Fseha, JF Shaheen… - … Science and Pollution …, 2023‏ - Springer
The impact of water pollution has led to the search for cost-effective and environmentally
friendly treatment processes to alleviate the associated environmental hazards. Adsorption …

Eco-friendly magnetic biochar: An effective trap for nanoplastics of varying surface functionality and size in the aqueous environment

N Singh, N Khandelwal, ZA Ganie, E Tiwari… - Chemical Engineering …, 2021‏ - Elsevier
The surge in nano/microplastics (NPs/MPs) through myriad daily products released in the
aqueous environment highlights the importance of the urgent development of mitigation …

Facile synthesis of a sandwiched Ti3C2Tx MXene/nZVI/fungal hypha nanofiber hybrid membrane for enhanced removal of Be (II) from Be (NH2) 2 complexing …

R Chen, Y Cheng, P Wang, Y Wang, Q Wang… - Chemical engineering …, 2021‏ - Elsevier
Two-dimensional metal carbides or nitrides (MXenes) demonstrate various excellent
properties; however, their poor permeability precludes their application in water treatment. In …

Clean water production from plastic and heavy metal contaminated waters using redox-sensitive iron nanoparticle-loaded biochar

ZA Ganie, N Khandelwal, A Choudhary… - Environmental …, 2023‏ - Elsevier
The unceasing release of tiny plastics (microplastics and nanoplastics) and their additives,
like metal ions, into the aquatic systems from industries and other sources is a globally …

A decade of exploring MXenes as aquatic cleaners: Covering a broad range of contaminants, current challenges and future trends

N Khandelwal, GK Darbha - Chemosphere, 2021‏ - Elsevier
Clean water, the elixir of life, is of tremendous importance in achieving environmental
sustainability and the balanced functioning of our ecosystem. Coupled with population …

Efficient removal of hexavalent chromium from an aquatic system using nanoscale zero-valent iron supported by ramie biochar

X Tan, M Shaaban, J Yang, Y Cai, B Wang, QA Peng - Nanomaterials, 2021‏ - mdpi.com
In this study, ramie biochar (RBC) was used to activate nano zero-valent iron (nZVI) to
enhance hexavalent chromium (Cr (VI)) removal. The best results were obtained at a …

New consideration on the application of nano-zero-valent iron (nZVI) in groundwater remediation: refractions to existing technologies

Y Xu, BLGL Zanli, J Chen - Journal of Nanoparticle Research, 2024‏ - Springer
Nano-zero-valent iron (nZVI,< 100 nm) has been used extensively in groundwater
remediation over the past two decades. In this review, recent research (past 5–6 years) were …

Impact of long-term storage of various redox-sensitive supported nanocomposites on their application in removal of dyes from wastewater: Mechanisms delineation …

N Khandelwal, E Tiwari, N Singh, R Marsac… - Journal of Hazardous …, 2021‏ - Elsevier
For the prevention of freshwater reservoirs from contamination through industrial effluents,
eco-friendly adsorbents with minimal aging impact are required. Here, redox-sensitive …

Varying growth behavior of redox-sensitive nanoparticles on 1: 1 and 2: 1 clay surfaces: mechanistic insights on preferential toxic ions removal in mono, co, and multi …

N Khandelwal, N Singh, E Tiwari, R Marsac… - Chemical Engineering …, 2023‏ - Elsevier
In the current study, contrasting growth behaviour of redox sensitive Fe 0 nanoparticles
(nZVI) was observed on different clay surfaces ie, 1: 1 non-swelling kaolinite (K-nZVI) and 2 …