Extraction of SiO2 from gasified rice husk carbon simultaneously rice husk activated carbon production: Restudy on product properties, activation mechanism, and evolution law of pore structure
Extraction of SiO2 from gasified rice husk carbon simultaneously rice husk activated carbon production: Restudy on product properties, activation mechanism, and evolution law of pore structure
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气化稻壳炭提取SiO2同时生产稻壳活性炭：产品性能、活化机理及孔结构演化规律再研究
DOI：
10.1016/j.egyr.2020.11.031
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发表时间：
2020-11
期刊：
影响因子：
5.2
通讯作者：
Zhou Jianbin
中科院分区：
文献类型：
--
作者：
Wanga Liangcai;Zhao Manqi;Ma Huanhuan;Han Guolin;Yang Derui;Chen Dengyu;Zhang Yimeng;Zhou Jianbin
本研究的目的是为气化稻壳炭的高效无害化利用提供理论依据，进一步了解其活化机理和孔结构的演化规律。用K2CO3从RHC中提取SiO_2，然后将分离的稻壳活性炭前驱体(ACP)活化，制得稻壳活性碳(RAC)。结果表明，采用ACP法制备的活性炭比表面积为1006.208 m2/g，二氧化硅产率为20.64%。与RHC的粒度相比，K2CO3的质量分数对ACP表面的K2CO3含量和SiO_2产率有显著影响。ACP的活化过程主要取决于内表面吸附的K2CO3的含量和内部结构。随着K2CO3质量分数的增加，RAC的孔结构大致经历了两个主要阶段(完全发展期和过渡期)。此外，SiO_2具有大量5 nm的∼介孔，在95 0°C焙烧4h后趋于晶化
The goal of this work was to provide a theoretical basis for efficient and harmless utilization of gasified rice husk carbon (RHC), and further understand its activation mechanism and evolution law of pore structure. K 2 CO 3 was used to extract SiO 2 from RHC, and then the rice husk activated carbon (RAC) was prepared by activating the separated rice husk activated carbon precursor (ACP). Results showed that the specific surface area of the RAC prepared via the ACP was 1006.208 m 2/g upon the yield of SiO 2 was 20.64%. Compared with the particle size of RHC, the K 2 CO 3 mass fraction have a significant effect on the yield of SiO 2 and the K 2 CO 3 content of ACP surface The activation process of ACP mainly depended on the content of K 2 CO 3 adsorbed on its inner surface and internal structure. With an increase in K 2 CO 3 mass fraction, the pore structure of RAC roughly went through two primary stages (full development period to transitional development period). Besides, SiO 2 has a great amount of∼ 5 nm of mesopores and tended to crystallize upon sintered at 950° C for 4 h
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影响因子：
3
作者：
S. Tjong;K. Lau
通讯作者：
S. Tjong;K. Lau
DOI：
10.3390/nano8090689
发表时间：
2018-09-05
期刊：
Nanomaterials (Basel, Switzerland)
影响因子：
--
作者：
Nicholas AF;Hussein MZ;Zainal Z;Khadiran T
通讯作者：
Khadiran T
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DOI：
10.3390/molecules23061373
发表时间：
2018-06-06
期刊：
Molecules (Basel, Switzerland)
影响因子：
--
作者：
Xiao P;Huang J;Dong T;Xie J;Yuan J;Luo D;Liu B
通讯作者：
Liu B
DOI：
10.1021/acs.langmuir.7b00589
发表时间：
2017-05
期刊：
Langmuir : the ACS journal of surfaces and colloids
影响因子：
--
作者：
Minho Yang;Dong Seok Kim;Seok Bok Hong;Jae-Wook Sim;Jinsoo Kim;Seung-Soo Kim;B. Choi
通讯作者：
Minho Yang;Dong Seok Kim;Seok Bok Hong;Jae-Wook Sim;Jinsoo Kim;Seung-Soo Kim;B. Choi
影响因子：
1.6
作者：
Tuvshin Dugarjav;Takeshi Yamaguchi;Kei Shibata;K. Hokkirigawa
通讯作者：
Tuvshin Dugarjav;Takeshi Yamaguchi;Kei Shibata;K. Hokkirigawa