Hydrochar Nanocatalyst for Emerging Pollutant Remediation, Sustainable Development, and Circular EconomySource: Journal of Hazardous, Toxic, and Radioactive Waste:;2025:;Volume ( 029 ):;issue: 001::page 04024029-1Author:Shraddha Yadav
,
Monali Priyadarshini
,
Azhan Ahmad
,
Makarand M. Ghangrekar
,
Brajesh K. Dubey
DOI: 10.1061/JHTRBP.HZENG-1357Publisher: American Society of Civil Engineers
Abstract: Hydrochar (HC), a carbon (C)-rich solid material produced using a hydrothermal technique at relatively low temperatures and pressures, has gained little attention regarding its use as a nanocatalyst in multiple wastewater treatment technologies. These HC-based nanocatalysts, catalyst support materials, and nano-adsorbents have the advantage of being cost-effective and chemically stable, having a porous structure, semiconductive properties, and oxygen (O)-rich surface functionality. Laboratory-scale trials that have successfully used HC catalysts to accelerate the kinetics of advanced oxidation processes (AOPs) (photocatalysis, electrochemical oxidation, Fenton catalysis) are here reviewed in depth, with a special focus on the mechanisms involved. The potential of HC catalysts in energy and valuables recovery using anaerobic digestion, bioelectrochemical systems, metal air batteries, transesterification, isomerization, and reforming processes are highlighted. In addition, the synthesis of HC from waste biomass (a zero-cost C precursor) would reduce the cost of expensive electrocatalysts, reduce greenhouse gas (GHG) emissions, ensure C capture, offer a low-C economy with less of a C footprint, and enhance environmental sustainability. This review provides a unique and comprehensive sustainability related perspective on HC and HC-based nanocatalysts that can be used to positively impact the United Nations’ Sustainable Development Goals (SDGs), especially SDGs 3, 6, 7, 11, and 13. Finally, a circular economy approach that includes HC and HC catalyst use in wastewater treatment and waste management systems is discussed, along with future perspectives and challenges.
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contributor author | Shraddha Yadav | |
contributor author | Monali Priyadarshini | |
contributor author | Azhan Ahmad | |
contributor author | Makarand M. Ghangrekar | |
contributor author | Brajesh K. Dubey | |
date accessioned | 2025-04-20T10:26:23Z | |
date available | 2025-04-20T10:26:23Z | |
date copyright | 9/12/2024 12:00:00 AM | |
date issued | 2025 | |
identifier other | JHTRBP.HZENG-1357.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4304723 | |
description abstract | Hydrochar (HC), a carbon (C)-rich solid material produced using a hydrothermal technique at relatively low temperatures and pressures, has gained little attention regarding its use as a nanocatalyst in multiple wastewater treatment technologies. These HC-based nanocatalysts, catalyst support materials, and nano-adsorbents have the advantage of being cost-effective and chemically stable, having a porous structure, semiconductive properties, and oxygen (O)-rich surface functionality. Laboratory-scale trials that have successfully used HC catalysts to accelerate the kinetics of advanced oxidation processes (AOPs) (photocatalysis, electrochemical oxidation, Fenton catalysis) are here reviewed in depth, with a special focus on the mechanisms involved. The potential of HC catalysts in energy and valuables recovery using anaerobic digestion, bioelectrochemical systems, metal air batteries, transesterification, isomerization, and reforming processes are highlighted. In addition, the synthesis of HC from waste biomass (a zero-cost C precursor) would reduce the cost of expensive electrocatalysts, reduce greenhouse gas (GHG) emissions, ensure C capture, offer a low-C economy with less of a C footprint, and enhance environmental sustainability. This review provides a unique and comprehensive sustainability related perspective on HC and HC-based nanocatalysts that can be used to positively impact the United Nations’ Sustainable Development Goals (SDGs), especially SDGs 3, 6, 7, 11, and 13. Finally, a circular economy approach that includes HC and HC catalyst use in wastewater treatment and waste management systems is discussed, along with future perspectives and challenges. | |
publisher | American Society of Civil Engineers | |
title | Hydrochar Nanocatalyst for Emerging Pollutant Remediation, Sustainable Development, and Circular Economy | |
type | Journal Article | |
journal volume | 29 | |
journal issue | 1 | |
journal title | Journal of Hazardous, Toxic, and Radioactive Waste | |
identifier doi | 10.1061/JHTRBP.HZENG-1357 | |
journal fristpage | 04024029-1 | |
journal lastpage | 04024029-18 | |
page | 18 | |
tree | Journal of Hazardous, Toxic, and Radioactive Waste:;2025:;Volume ( 029 ):;issue: 001 | |
contenttype | Fulltext |