Hydrochar Loaded with Nitrogen-Containing Functional Groups for Versatile Removal of Cationic and Anionic Dyes and Aqueous Heavy Metals DOI Open Access
Yue Zhang, Yongshan Wan, Yulin Zheng

et al.

Water, Journal Year: 2024, Volume and Issue: 16(23), P. 3387 - 3387

Published: Nov. 25, 2024

Developing novel sorbents for effective removal of heavy metals and organic dyes from industrial wastewater remains a central theme water research. We modified hydrochar derived the hydrothermal carbonization wheat straw at 180 °C with 3-Aminopropyl triethoxysilane (APTES) to enhance its versatile adsorption Pb(II), Cu(II), methylene blue (MB), reactive red (Red). Pristine (HyC APTES-HyC) were characterized tested sorption performance. Characterization results revealed an enriched presence N-functional groups, mainly -NH2 C-N, on APTES-HyC, in addition increased specific surface area 1.14 m2/g (HyC) 4.51 m2/g. APTES-HyC exhibited faster rate than HyC, reaching equilibrium approximately 4 h after initiation. The Langmuir capacities 49.6, 14.8, 31.7, 18.3 mg/g MB, Red, respectively, about 8.5, 5.0, 1.3, 9.5 times higher HyC. enhanced performance is attributed which facilitated mechanisms pollutant concern such as formation frustrated Lewis pairs cation–π interactions metal ions π–π hydrogen bond dyes. This study offers facile approach synthesis N-doped carbon materials practical applications.

Language: Английский

Removal of toxic heavy metals from aquatic systems using low-cost and sustainable biochar: A review DOI Creative Commons
Kosar Hikmat Hama Aziz

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 320, P. 100757 - 100757

Published: Sept. 7, 2024

Language: Английский

Citations

22
Research progress on activated persulfate by biochar: Soil and water environment remediation, mechanism exploration and simulation calculation DOI

Ziming Xin,

Jianhao Tong,

Jing Wang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152718 - 152718

Published: May 31, 2024

Language: Английский

Citations

18
Utilization of SiO2-NP-Modified Biochar from Invasive Plants to Mitigate Heavy Metal Stress in Allium hookeri DOI Creative Commons

Minmin Su,

Haowen Tian,

Zhiqing Guo

et al.

Environmental Technology & Innovation, Journal Year: 2025, Volume and Issue: unknown, P. 104041 - 104041

Published: Jan. 1, 2025

Language: Английский

Citations

1
Effects of Mg-Palygorskite Modified Biochar on the Growth of Sedum alfredii Hance in Heavy Metal Contaminated Soil DOI Creative Commons
Tianwen Wang, Xianxiang Luo, Kun Chen

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(5), P. 790 - 790

Published: March 4, 2025

Heavy metal contamination of soil poses a serious threat to agricultural production and human health. Biochar modified with Mg palygorskite can reduce the content available heavy metals in soil; however, its passivation effect is affected by modification method, there lack research on impact plant growth heavily polluted soil. In this study, four types biochar were prepared using MgCl2, palygorskite, wood as raw materials, including MBC MPB pre-modification BCM BPM post-modification. Sedum alfredii Hance was selected test plant, pot experiment conducted explore effects unmodified Cu, Pb, Zn, Cd. Compared original biochar, especially pre-modified significantly increased ash content, pH, O/C ratio, surface functional group count, mineral content. The adsorption capacity for also enhanced, main mechanisms being precipitation, complexation, ion exchange. promoted biomass varying degrees, promotion order > BCM, more significant 3% addition. reduced rhizosphere soil, addition had greatest effect. Further analysis via Mantel structural equation modeling confirmed that reducing increasing NO3−-N AP contents. This study provides data support development functionalized remediation pollution

Language: Английский

Citations

0
Loading of MgO onto Fe-rich sludge-derived Fe0 biochar composites for efficient aqueous Pb2+ removal: Performance and mechanism DOI
Qi Zhang, Wendan Xiao, Chen De

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 69, P. 106838 - 106838

Published: Dec. 24, 2024

Language: Английский

Citations

1
Hydrochar Loaded with Nitrogen-Containing Functional Groups for Versatile Removal of Cationic and Anionic Dyes and Aqueous Heavy Metals DOI Open Access
Yue Zhang, Yongshan Wan, Yulin Zheng

et al.

Water, Journal Year: 2024, Volume and Issue: 16(23), P. 3387 - 3387

Published: Nov. 25, 2024

Developing novel sorbents for effective removal of heavy metals and organic dyes from industrial wastewater remains a central theme water research. We modified hydrochar derived the hydrothermal carbonization wheat straw at 180 °C with 3-Aminopropyl triethoxysilane (APTES) to enhance its versatile adsorption Pb(II), Cu(II), methylene blue (MB), reactive red (Red). Pristine (HyC APTES-HyC) were characterized tested sorption performance. Characterization results revealed an enriched presence N-functional groups, mainly -NH2 C-N, on APTES-HyC, in addition increased specific surface area 1.14 m2/g (HyC) 4.51 m2/g. APTES-HyC exhibited faster rate than HyC, reaching equilibrium approximately 4 h after initiation. The Langmuir capacities 49.6, 14.8, 31.7, 18.3 mg/g MB, Red, respectively, about 8.5, 5.0, 1.3, 9.5 times higher HyC. enhanced performance is attributed which facilitated mechanisms pollutant concern such as formation frustrated Lewis pairs cation–π interactions metal ions π–π hydrogen bond dyes. This study offers facile approach synthesis N-doped carbon materials practical applications.

Language: Английский

Citations

0