Rice husk biochar mediated red phosphorus for photocatalysis and photothermal removal of E. coli

Li, Meng; Guan, Liqian; Wen, Yujiao; Su, Lezhu; Hu, Zhan; Peng, Zhengjie; Li, Shikai; Tang, Qiyuan; Zhou, Zhi; Zhou, Nan

doi:10.1016/j.foodchem.2023.135455

Cited by 11 publications

(3 citation statements)

References 22 publications

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“…S1(c), † the peaks at 533.4 eV,531.0 eV and 532.4 eV in the broad spectrum of O1s correspond to the C–OH bond, SiO 2 and C O bond arises due to the presence of inherent silica in RH. 44 In Fig. S1(d), † narrow scanning of Si presents a peak at 103.2 eV that could be further deconvoluted to SiO 2 (103.8 eV) and Si–O–Si (103.1 eV) and Si–C (101.2 eV), 45 occurring due to silica embedded in aligned cellulose microfibrils.…”

Section: Resultsmentioning

confidence: 99%

Rice husk valorisation by in situ grown MoS₂ nanoflowers: a dual-action catalyst for pollutant dye remediation and microbial decontamination

Ranjan,

Bhatt,

Rai

et al. 2024

RSC Adv.

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Section: Resultsmentioning

confidence: 99%

Rice husk valorisation by in situ grown MoS₂ nanoflowers: a dual-action catalyst for pollutant dye remediation and microbial decontamination

Ranjan,

Bhatt,

Rai

et al. 2024

RSC Adv.

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“…There is a lack of a uniform standard in the research of photocatalytic antimicrobial mechanism. For example, different bacteria may be used in different research works, and different bacteria may have different cell structures and death mechanisms, which will lead to the inaccuracy of photocatalytic mechanism study results …”

Section: Conclusion Challenges and Perspectivesmentioning

confidence: 99%

Photocatalytic Antimicrobials: Principles, Design Strategies, and Applications

Ran,

Wang

et al. 2023

Chem. Rev.

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Nowadays, the increasing emergence of antibiotic-resistant pathogenic microorganisms requires the search for alternative methods that do not cause drug resistance. Phototherapy strategies (PTs) based on the photoresponsive materials have become a new trend in the inactivation of pathogenic microorganisms due to their spatiotemporal controllability and negligible side effects. Among those phototherapy strategies, photocatalytic antimicrobial therapy (PCAT) has emerged as an effective and promising antimicrobial strategy in recent years. In the process of photocatalytic treatment, photocatalytic materials are excited by different wavelengths of lights to produce reactive oxygen species (ROS) or other toxic species for the killing of various pathogenic microbes, such as bacteria, viruses, fungi, parasites, and algae. Therefore, this review timely summarizes the latest progress in the PCAT field, with emphasis on the development of various photocatalytic antimicrobials (PCAMs), the underlying antimicrobial mechanisms, the design strategies, and the multiple practical antimicrobial applications in local infections therapy, personal protective equipment, water purification, antimicrobial coatings, wound dressings, food safety, antibacterial textiles, and air purification. Meanwhile, we also present the challenges and perspectives of widespread practical implementation of PCAT as antimicrobial therapeutics. We hope that as a result of this review, PCAT will flourish and become an effective weapon against pathogenic microorganisms and antibiotic resistance.

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“…Rice husks are the by-product of the rice milling process and makeup about 20 percent of the rice's weight [22]. Statistics show that the world produces 60 billion tons of rice husks every year [23]. However, rice husks are often used in low-value-added applications or act as agricultural wastes.…”

Section: Introductionmentioning

confidence: 99%

Removal of Phosphorus from Domestic Sewage in Rural Areas Using Oyster Shell-Modified Agricultural Waste–Rice Husk Biochar

Xu,

Liu,

Chen

2023

Processes

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In order to promote the improvement of rural living environments, the treatment of rural domestic sewage has attracted much attention in China. Meanwhile, the rural regions’ sewage discharge standards are becoming increasingly stringent. However, the standard compliance rate of the total phosphorus (TP) is very low, and the TP has become the main limiting pollutant for the water pollutant discharge standards of rural domestic sewage treatment facilities. In this study, oyster shell waste was employed as a calcium source, and agricultural waste–rice husk was used as a carbon source to synthesize calcium-modified biochar adsorbent materials (Ca-BC) by a simple one-step pyrolysis method. The resultant Ca-BC adsorbent materials demonstrated efficient phosphate (P) adsorption from aqueous solutions over a wide pH range (3–11) and adsorption selectivity. Ca-BC’s adsorption capacity for P increased with the pyrolysis temperature, increasing from 700 °C to 900 °C, which was attributed to the higher specific surface area and calcium oxide content at higher pyrolysis temperatures. The Ca-BC sample, which was made from oyster shells and rice husks with a mass ratio of 2:1 and a pyrolysis temperature of 900 °C, had a maximum adsorption capacity of 196.2 mg/g. The Langmuir model and pseudo-second-order model were the best at describing the adsorption process, and the predominant sorption mechanism for P is the precipitation of calcium oxide or calcium hydroxide with phosphate to create hydroxyapatite. Ca-BC can effectively remove P from rural domestic sewage. The removal rate of the total phosphorus (TP) in rural domestic sewage is 93.9–99.4%. After the adsorption treatment, the discharge of the TP in the rural sewage met the second-grade (TP < 3 mg/L) or even the first-grade (TP < 2 mg/L) Discharge Standard of Water Pollutants for Centralized Rural Sewage Treatment Facilities (DB33/973-2021). This study provides an experimental basis for efficient P removal by Ca-BC adsorbent materials and suggests possible applications in rural domestic sewage.

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Rice husk biochar mediated red phosphorus for photocatalysis and photothermal removal of E. coli

Cited by 11 publications

References 22 publications

Rice husk valorisation by in situ grown MoS₂ nanoflowers: a dual-action catalyst for pollutant dye remediation and microbial decontamination

Rice husk valorisation by in situ grown MoS₂ nanoflowers: a dual-action catalyst for pollutant dye remediation and microbial decontamination

Photocatalytic Antimicrobials: Principles, Design Strategies, and Applications

Removal of Phosphorus from Domestic Sewage in Rural Areas Using Oyster Shell-Modified Agricultural Waste–Rice Husk Biochar

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Rice husk biochar mediated red phosphorus for photocatalysis and photothermal removal of E. coli

Cited by 11 publications

References 22 publications

Rice husk valorisation by in situ grown MoS2 nanoflowers: a dual-action catalyst for pollutant dye remediation and microbial decontamination

Rice husk valorisation by in situ grown MoS2 nanoflowers: a dual-action catalyst for pollutant dye remediation and microbial decontamination

Photocatalytic Antimicrobials: Principles, Design Strategies, and Applications

Removal of Phosphorus from Domestic Sewage in Rural Areas Using Oyster Shell-Modified Agricultural Waste–Rice Husk Biochar

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Product

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Rice husk valorisation by in situ grown MoS₂ nanoflowers: a dual-action catalyst for pollutant dye remediation and microbial decontamination

Rice husk valorisation by in situ grown MoS₂ nanoflowers: a dual-action catalyst for pollutant dye remediation and microbial decontamination