High-efficiency removal of benzene vapor using activated carbon from Althaea officinalis L. biomass as a lignocellulosic precursor

Işınkaralar, Kaan

doi:10.1007/s11356-022-20579-2

Cited by 30 publications

(11 citation statements)

References 71 publications

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“…[124,125] Activation followed by carbonization can promote the combustion of tar generated in the carbonization process, thus improving the porosity (total surface area up to 3000 m 2 g −1 ). [126] Activation can be conducted physically or chemically (Table 1), where oxidative gases (steam or CO 2 ) or inorganic compounds such as acids (HNO 3 , H 3 PO 4 , H 2 SO 4 ), [127][128][129][130][131][132][133] bases (KOH, NaOH, LiOH) [129,[134][135][136][137] and salts (K 2 S 2 O 8 , K 2 CO 3 , FeCl 3 , CaCl 2 , ZnCl 2 ) [89,127,[138][139][140][141][142][143][144] are often used as activators. The porous active carbon obtained by physical activation usually possesses a medium specific surface area (SSA<1000 m 2 g −1 ) and relatively narrow micropores, while the carbon obtained by chemical activation owns a high porosity (SSA≈3000 m 2 g −1 ).…”

Section: Activationmentioning

confidence: 99%

Biomass‐Derived Carbon Materials for the Adsorption of Organic Pollutants

Qiu,

Li,

et al. 2023

Advanced Sustainable Systems

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With the development of economy and increasing environmental awareness, how to effectively remove organic pollutants in wastewater is a research hotspot. Adsorption is one of the effective methods, and the adsorption material is the key factor to determine the efficiency. In this review, biomass‐derived carbon materials as adsorbents of organic pollutants and the adsorption mechanism are discussed in depth. The effects of carbonization and activation on the morphology and structure of carbon materials; the modification strategies of carbon adsorbents, the adsorption performance of biomass‐derived carbon materials for organic pollutants are described and illustrated; the future work of the biomass‐derived carbon materials is proposed.

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Section: Activationmentioning

confidence: 99%

Biomass‐Derived Carbon Materials for the Adsorption of Organic Pollutants

Qiu,

Li,

et al. 2023

Advanced Sustainable Systems

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“…Activated carbon has micropores, mesopores, and macropores with nonpolar and hydrophobic characteristics. Because of these characteristics, activated carbon is widely used in the study of VOC’s gas adsorption of BTEX series [ 16 , 17 ]. Generally, activated carbon has a high adsorption performance toward non-polar gases such as VOCs [ 18 ], whereas polar chemicals (NH 3 and H 2 S) with high adsorption potential are generally poorly adsorbed [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Adsorption Capacity and Desorption Efficiency of Activated Carbon for Odors from Medical Waste

Park

Lee

et al. 2023

Molecules

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Five types of odor-emitting exhaust gases from medical waste were selected, and their adsorption capacity and desorption efficiency were investigated using activated carbon. The selected gases included polar gases (hydrogen sulfide (H2S) and ammonia (NH3)) and non-polar gases (acetaldehyde (AA), methyl mercaptan (MM), and trimethylamine (TMA))). Commercial activated carbon with a specific surface area of 2276 m2/g was used as the adsorbent. For the removal of odor from medical waste, we investigated: (1) the effective adsorption capacity of a single gas (<1 ppm), (2) the effect of the adsorbed NH3 gas concentration and flow rate, and (3) the desorption rate using NH3 gas. The values of the effective adsorption capacity of the single gas were in the following order: H2S < NH3 < AA < MM < TMA, at 0.2, 4.2, 6.3, 6.6, and 35.7 mg/g, respectively. The results indicate that polar gases have a lower effective adsorption capacity than that of non-polar gases, and that the size of the gas molecules and effective adsorption capacity exhibit a proportional relationship. The effective adsorption performance of NH3 gas showed an increasing trend with NH3 concentration. Therefore, securing optimal conditions for adsorption/desorption is imperative for the highly efficient removal of odor from medical waste.

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“…In an airtight indoor environment designed for energy-saving purposes, harmful compounds emitted from decoration and refurbishing materials tend to accumulate owing to the low rate of air exchange. Benzene is also an indoor environmental toxicant which comes from furniture painting, wall painting, and decoration materials (Isinkaralar 2022 ). The concentration of benzene in the indoor air in the kitchen or industrial site may exceed the national standard by tens or even hundreds of times (Natarajan et al 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Transport and removal mechanism of benzene by Tradescantia zebrina Bosse and Epipremnum aureum (Linden ex André) G.S. Bunting in air-plant-solution system

et al. 2023

Environ Sci Pollut Res

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Phytoremediation is considered an effective method for indoor air pollution control. The removal rate and mechanism of benzene in air by two plants, Tradescantia zebrina Bosse and Epipremnum aureum (Linden ex André) G. S. Bunting, were investigated through fumigation experiments under the condition of plant hydroponics culturing. Results showed that the plant removal rates increased with increase in benzene concentration in air. When the benzene concentration in air was set at 432.25–1314.75 mg·m −3 , the removal rates of T. zebrina and E. aureum ranged from 23.05 ± 3.07 to 57.42 ± 8.28 mg·kg –1 ·h –1 FW and from 18.82 ± 3.73 to 101.58 ± 21.20 mg·kg –1 ·h –1 FW, respectively. The removal capacity was positively related to the transpiration rate of plants, indicating that gas exchange rate could be a key factor for the evaluation of removal capacity. There existed fast reversible transport of benzene on air-shoot interface and root-solution interface. After shoot exposure to benzene for 1 h, downward transport was the dominant mechanism in the removal of benzene in air by T. zebrina , while in vivo fixation was the dominant mechanism at exposure time of 3 and 8 h. Within 1–8 h of shoot exposure time, in vivo fixation capacity was always the key factor affecting the removal rate of benzene in the air by E. aureum . Contribution ratio of in vivo fixation in the total benzene removal rate increased from 6.29 to 92.29% for T. zebrina and from 73.22 to 98.42% for E. aureum in the experimental conditions . Reactive oxygen species (ROS) burst induced by benzene exposure was responsible for the contribution ratio change of different mechanisms in the total removal rate, which also was verified by the change of activities of antioxidant enzymes (CAT, POD, and SOD). Transpiration rate and antioxidant enzyme activity could be considered parameters to evaluate the plant removal ability to benzene and to screen plants for establishment of plant-microbe combination technology.

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High-efficiency removal of benzene vapor using activated carbon from Althaea officinalis L. biomass as a lignocellulosic precursor

Cited by 30 publications

References 71 publications

Biomass‐Derived Carbon Materials for the Adsorption of Organic Pollutants

Biomass‐Derived Carbon Materials for the Adsorption of Organic Pollutants

Adsorption Capacity and Desorption Efficiency of Activated Carbon for Odors from Medical Waste

Transport and removal mechanism of benzene by Tradescantia zebrina Bosse and Epipremnum aureum (Linden ex André) G.S. Bunting in air-plant-solution system

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