Synthesis and characterization of chitosan/polyvinyl alcohol immersed in sodium hydroxide thin film as a heterogeneous catalyst in biodiesel production

被引：10

作者：

Lusiana, Retno Ariadi ^{[1
]}

Nuryanto, Rahmad ^{[1
]}

Dayanti, Dilla ^{[1
]}

Khabibi

Wijayati, Nanik ^{[2
]}

Sasongko, Nurwarrohman Andre ^{[1
,3
]}

Wijaya, Anugrah Ricky ^{[4
]}

机构：

[1] Diponegoro Univ, Fac Sci & Math, Dept Chem, Semarang 50275, Indonesia

[2] Semarang State Univ, Dept Chem, Semarang 50229, Indonesia

[3] Pukyong Natl Univ, Dept Chem, Pusan 608737, South Korea

[4] State Univ Malang, Dept Chem, Malang 65145, Indonesia

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2023年 / 251卷

关键词：

Biodiesel; Chitosan; Heterogeneous catalyst; Polyvinyl alcohol; OIL; MEMBRANE; CHITOSAN;

D O I：

10.1016/j.ijbiomac.2023.126378

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Biodiesel is a potential renewable energy source that can be used to replace fossil fuels because of its low toxicity, biodegradability, and renewability. However, biodiesel production requires long reaction times. Hence, a catalyst is needed to speed up the reaction and optimize production conditions. CS/PVA thin film catalyst immersed in NaOH has intriguing catalytic properties that can improve biodiesel conversion efficiency. In this paper, a series of chitosan/polyvinyl alcohol-sodium hydroxide (CS/PVA-NaOH) thin films have been prepared as heterogeneous catalysts in biodiesel production. According to the FTIR spectra data, It shows that the vibrational frequency of the hydroxyl group (-OH) shifted from 3271 cm(-1) to 3290 cm(-1), indicating the hydrogen bond interaction between chitosan and PVA. Water uptake (45.42-218.64 %), swelling (120.63-142.99 %), porosity (62.67-243.43 %), and the durability of the thin film at pH conditions of 5-11 have been found to be the physicochemical characteristics of blended Chitosan/PVA (4/1; 3/2; 2.5/2.5; 2/3; 1/4 (v/v)). The optimal conditions for producing biodiesel were found to be around 65 degrees C for 90 min with an oil: methanol molar ratio of 1:7. By using a heterogeneous catalyst of CS/PVA-NaOH, the conversion efficiency from oil to biodiesel was achieved at around 95.39-99.52 %.

引用

页数：11

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