The gorgeous transformation of paper: From cellulose paper to inorganic paper to 2D paper materials with multifunctional properties

2021 ◽  
Author(s):  
Xin Dai ◽  
Zhiguang Guo
Keyword(s):  
Cellulose Paper ◽  
Cultural Dissemination ◽  
Daily Writing ◽  
Multifunctional Properties

Cellulose paper derived from plants is used for daily writing and recording, and has historically played an important role in promoting cultural dissemination and inheritance. However, it attracted more and...

UPAYA MENINGKATKAN KEMAMPUAN MENULIS DEVELOPING PARAGRAPH OF EXPLANATION TEXT MELALUI PENDEKATAN CONTEXTUAL TEACHING AND LEARNING (CTL) PADA MATA PELAJARAN BAHASA INGGRIS SISWA KELAS XII IPA 4 SMAN 9 PEKANBARU

2017 ◽  
Vol 1 (1) ◽  
pp. 54
Author(s):  
Muslainy Muslainy
Keyword(s):  
Action Research ◽  
Teaching And Learning ◽  
Writing Skills ◽  
Class Action ◽  
Test Results ◽  
English Class ◽  
Survey Results ◽  
Contextual Teaching ◽  
Classroom Action Research ◽  
Daily Writing

This study is a class action (class action reseach). Based on test results daily writing on students' class XII IPA 4 SMAN 9 Pekanbaru encountered symptoms as follows: only 11 students or 30,55% of the 36 students who have the ability to write a developing Paragraph of explanation textdalam good English so it has reached KKM predetermined is 85. A total of 25 students or 69,4% of the 36 students had difficulty in writing textsehingga developing paragraph of explanation they have not been able to achieve a predetermined KKM. Students find it quickly bored with the lessons presented, it can be seen from their activities are often played or talked with friends when subjects exercised. This study was conducted in two cycles, the data is described is writing developing paragraph of explanation text, ie before the action on the first cycle, the second cycle, each cycle is done in one meeting. This classroom action research in order to work well without barriers obstructing the smooth running of the study, researchers compiled stages traversed in action research, namely: (1) planning/ preparatory actions; (2) Implementation of the action; (3) observation; and (4) reflection. Based on the results of the discussion and analysis as presented in chapter VII can be concluded that the application of the approach contextual teaching and learning (CTL) can improve the ability to write a text explanation developing paragraph of english in english class students of class XII IPA 4 SMAN 9 Pekanbaru. Based on the survey results revealed that developing writing skills of explanation text paragraph british student before action classical gained an average of 64,40 in the first cycle of classical gained an average of 72,50, the second cycle obtain the average classical 90,20.

TiO2/Ag2O immobilized on cellulose paper: A new floating system for enhanced photocatalytic and antibacterial activities

2021 ◽  
pp. 111257
Author(s):  
Mouheb Sboui ◽  
Hinda Lachheb ◽  
Soraa Bouattour ◽  
Michelangelo Gruttadauria ◽  
Valeria La Parola ◽  
...  
Keyword(s):  
Antibacterial Activities ◽  
Cellulose Paper ◽  
Floating System

Multifunctional properties of {CuII2LnIII2} systems involving nitrogen-rich nitronyl nitroxide: single-molecule magnet behavior, luminescence, magnetocaloric effects and heat capacity

2021 ◽  
Author(s):  
Hongdao Li ◽  
Pei Jing ◽  
Jiao Lu ◽  
Lu Xi ◽  
Qi Wang ◽  
...  
Keyword(s):  
Heat Capacity ◽  
Magnetic Properties ◽  
Single Molecule ◽  
Nitroxide Radical ◽  
Nitronyl Nitroxide ◽  
Nitronyl Nitroxide Radical ◽  
Single Molecule Magnet ◽  
Luminescence Behavior ◽  
Multifunctional Properties

A family of 3d–4f heterometallic ring-shaped clusters on the basis of a nitrogen-rich nitronyl nitroxide radical have been obtained, and they feature polyfunctionality including magnetic properties, thermodynamics and luminescence behavior.

scholarly journals Cellulose Paper Modified by a Zinc Oxide Nanosheet Using a ZnCl2-Urea Eutectic Solvent for Novel Applications

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1111
Author(s):  
Changmei Lin ◽  
Duo Chen ◽  
Zifeng Hua ◽  
Jun Wang ◽  
Shilin Cao ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Cellulose Fibers ◽  
Human Motion ◽  
Triboelectric Nanogenerator ◽  
Crystalline Region ◽  
Ptfe Film ◽  
Cellulose Paper ◽  
Output Performance ◽  
Aqueous Solvent

Cellulose paper has been functionalized by nanoparticles such as Ag nanoparticles, TiO2, and BaTiO3 for versatile applications including supercapacitor, sensors, photoactivity, and packaging. Herein, zinc oxide (ZnO) nanosheet-modified paper (ZnO@paper) with excellent antibacterial properties was fabricated via a mild ZnCl2-urea eutectic solvent. In this proposed method, cellulose fibers as the raw material for ZnO@paper were treated by an aqueous solvent of ZnCl2-urea; the crystalline region was destroyed and [ZnCl]+-based cations were adsorbed on the surface of cellulose fibers, facilitating more ZnO growth on ZnO@paper. A flexible paper-based triboelectric nanogenerator (P-TENG) was made of ZnO@paper paired with a PTFE film. The P-TENG presents high triboelectric output performance and antibacterial activity. For instance, the output voltage and current of the P-TENG were 77 V and 0.17 μA, respectively. ZnO@paper showed excellent antibacterial activity against E. coli and S. aureus, suggesting that a P-TENG can restrain and kill the bacteria during the working process. The results also indicated that ZnO could improve the surface roughness of cellulose paper, enhancing the output performance of a flexible P-TENG. In addition, the potential application of a P-TENG-based pressure sensor for determining human motion information was also reported. This study not only produced a high-performance P-TENG for fabricating green and sustainable electronics, but also provides an effective and novel method for ZnO@paper preparation.

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