Mechanism of sonication time on structure and adsorption properties of 3D peanut shell/graphene oxide aerogel

Dan, Hongbing; Li, Nan; Xu, Xin­guang; Gao, Yue; Ying, Hai; Akram, Muhammad; Yin, Weiyan

doi:10.1016/j.scitotenv.2020.139983

Cited by 30 publications

(12 citation statements)

References 59 publications

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“…On the other hand, graphene aerogels are largely and almost exclusively proposed to remove a wide variety of pollutants from wastewater, including dyes [ 128 , 129 ], drugs [ 8 , 20 ], heavy metals [ 121 , 130 ], radioactive elements [ 28 , 29 ], bacteria [ 124 , 131 ], organic solvents [ 131 , 132 ], and oils [ 26 , 125 ]. GO-based aerogels have exhibited great potential for wastewater treatment and the purification of natural waters, such as removing mercury [ 133 ] and microcontaminants from drinking water [ 134 ].…”

Section: Graphene Oxide-based Aerogelsmentioning

confidence: 99%

“…Indeed, in the current scenario of environmental remediation, the purification of air and wastewater is still a challenge. Specifically, aerogels have been successfully used to remove various categories of pollutants, such as pharmaceuticals [ 8 , 20 , 21 ], dyes [ 22 , 23 ], oils and solvents [ 24 , 25 , 26 ], heavy metals, and radioactive elements [ 27 , 28 , 29 ]. The presence of these organic compounds in water and air—even in small quantities—poses a severe danger to all living organisms and the environment.…”

Section: Introductionmentioning

confidence: 99%

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Porous Aerogels and Adsorption of Pollutants from Water and Air: A Review

2021

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Aerogels are open, three-dimensional, porous materials characterized by outstanding properties, such as low density, high porosity, and high surface area. They have been used in various fields as adsorbents, catalysts, materials for thermal insulation, or matrices for drug delivery. Aerogels have been successfully used for environmental applications to eliminate toxic and harmful substances—such as metal ions or organic dyes—contained in wastewater, and pollutants—including aromatic or oxygenated volatile organic compounds (VOCs)—contained in the air. This updated review on the use of different aerogels—for instance, graphene oxide-, cellulose-, chitosan-, and silica-based aerogels—provides information on their various applications in removing pollutants, the results obtained, and potential future developments.

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Section: Graphene Oxide-based Aerogelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Porous Aerogels and Adsorption of Pollutants from Water and Air: A Review

2021

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“…The absorption peak at 1265.46 cm –1 is caused by the stretching vibration of the C–O bond in the phenyl hydroxyl group in the lignin of peanut shell. [ 17 ] 1032.58 cm –1 is the stretching vibration absorption peak of C–O bond in cellulose and hemicellulose. [ 23 ] The strong and broad absorption peak at 3416.46 cm –1 indicates the existence of –OH groups in PSP.…”

Section: Resultsmentioning

confidence: 99%

“…[13][14][15] Peanut shell powder (PSP) is a kind of agricultural waste residue rich in lignin, cellulose, and hemicellulose, and its suf ficient surface area and pore density promote its application in layered functional materials. [16][17][18] For example, Zhan et al reported the PSP can be used to prepare highporosity activated carbon as lowcost electrode material for supercapacitors. [19] Yang et al used PSP to prepare porous doublenetwork porous hydrogels to achieve effective adsorption of Pb(II) and Cd(II).…”

Section: Introductionmentioning

confidence: 99%

Nutshell Powder‐Based Green Triboelectric Nanogenerator for Wind Energy Harvesting

Zhang

Xia

Cao

et al. 2022

Adv Materials Inter

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As an agricultural waste, peanut shell powder (PSP) is rich in cellulose and lignin, but its traditional treatment not only has additional disposal costs, but also causes environmental pollution. Here, a low‐cost and environment‐friendly triboelectric nanogenerator based on PSP (PSP‐TENG) is designed for efficient wind energy harvesting. PSP film is used as the tribo‐positive layer, with high surface charge density. The maximum output power density of the PSP‐TENG reaches 365 mW m–2 with a short‐circuit current of 39.4 µA and an open‐circuit voltage of 248.9 V. About 228 commercial LEDs can be lighted up by the wind‐driven PSP‐TENG, which can also be used as a sensor to measure the wind speed. By integrating with capacitor, PSP‐TENG can provide continuous and stable power supply for electronic devices, such as hygrometers, calculators, and stopwatches. Besides, an efficient self‐powered cathodic protection system based on PSP‐TENG is designed for anti‐corrosion for marine pipelines and ships. This work provides a simple and environment‐friendly “waste‐to‐energy technology,” which has a huge application prospect in agricultural waste treatment, new energy, and self‐powered system.

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“…103 A 3D pretreated peanut shell (PPS) biomass was also integrated with GO by a combined sonication and freeze-shaping process to generate a 3D graphene-based composite aerogel with the ability to deal with norfloxacin. 104 The preparation process is schematically shown on the right side of Fig. 9b.…”

Section: Environmental Science: Nano Critical Reviewmentioning

confidence: 99%