Researchers map out how biomass from plants could replace unrenewable resources in optical applications<\/p>\n\n\n\n
A digital, urbanized world consumes huge amounts of raw materials that could hardly be called environmentally friendly. One promising solution may be found in renewable raw materials, according to research published in\u00a0Advanced Materials<\/a><\/em>. In their paper, the international research group has taken a close look at how lignocellulose \u2014 or plant biomass \u2014 can be used for optical applications, potentially replacing commonly used materials like sand and plastics, Aalto University states in a press release<\/a>.<\/p>\n\n\n\n \u2018We wanted to map out as comprehensively as possible how lignocellulose could replace the unrenewable resources found in widely used technology, like smart devices or solar cells,\u2019 says Jaana Vapaavuori, assistant professor of functional materials at Aalto University<\/a>, who carried out the analysis with colleagues at the University of Turku<\/a>, RISE \u2013 Research Institute of Sweden<\/a>, and University of British Columbia<\/a>.<\/p>\n\n\n\n Lignocellulose, the term that encompasses cellulose, hemicellulose and lignin, is found in nearly every plant on Earth. When scientists break it down into very small parts and put it back together, they can create totally new, usable materials.<\/p>\n\n\n\n In their extensive review of the field, the researchers assessed the various manufacturing processes and characteristics needed for optical applications, for example, transparency, reflectiveness, UV-light filtering, as well as structural colors.<\/p>\n\n\n\n \u2018Through combining properties of lignocellulose, we could create light-reactive surfaces for windows or materials that react to certain chemicals or steam. We could even make UV protectors that soak up radiation, acting like a sunblock on surfaces,\u2019 explains Vapaavuori.<\/p>\n\n\n\n \u2018We can actually add functionalities to lignocellulose and customize it more easily than glass. For instance, if we could replace the glass in solar cells with lignocellulose, we could improve light absorption and achieve better-operating efficiency,\u2019 says\u00a0Kati Miettunen, professor of materials engineering at the University of Turku.<\/p>\n\n\n\n Because forest biomass is already in high demand and vast carbon sinks are crucial to the health of the planet, as a source of lignocellulose the researchers point to what\u2019s not being used: more than a billion tons of biomass waste created by industry and agriculture each year.<\/p>\n\n\n\n \u2018There is massive untapped potential in the leftovers of lignocellulose from other industries,\u2019 Vapaavuori emphasizes.<\/p>\n\n\n\n For now, researchers are still studying bio-based materials and creating prototypes. At Aalto University, for example, scientists have developed light fibers and light-reactive fabrics.<\/p>\n\n\n\n Vapaavuori says that the leap to scaling-up and commercialization could be achieved in two ways.<\/p>\n\n\n\n \u2018Either we create new uses for bio-based waste through government regulations or research brings about such cool demos and breakthroughs that it drives demand for renewable alternatives for optical applications. We believe that we need both political direction and solid research.\u2019<\/p>\n\n\n\n A major obstacle in the development and commercialization of lignocellulose-based innovations has been its manufacturing cost. Eyes were on nanocellulose already at the beginning of the 2000s but it\u2019s only now that the energy consumption and cost of production have dropped enough to make industrial use possible. Another ongoing challenge lies in a simple but fundamental ingredient of processing: water.<\/p>\n\n\n\n \u2018Cellulose loves water. To use it in optical applications, we need to find a way to make it stable in humid conditions,\u2019 says Vapaavuori.<\/p>\n\n\n\nUnused potential<\/h3>\n\n\n\n
Also interesting:<\/em><\/strong> A greenhouse out of wood: new design makes vertical farming greene<\/a><\/p>\n","protected":false},"author":2084,"featured_media":316479,"template":"","meta":{"_acf_changed":false,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":""},"categories":[42],"tags":[57008,56973,55077,125475,25035,125477,27690],"location":[53484],"internal_archives":[],"class_list":["post-316476","selected","type-selected","status-publish","has-post-thumbnail","hentry","category-sustainability-nl","tag-aalto-university","tag-lignocellulose","tag-research-institute-of-sweden","tag-rise","tag-solar-cells","tag-university-of-british-columbia","tag-wood","location-finland-nl"],"blocksy_meta":[],"acf":[],"featured_img":"https:\/\/ioplus.nl\/archive\/wp-content\/uploads\/2022\/04\/xcHKZA4G-Vapaavuori-Miettunen-Yazan-al-Haj-1.jpg","coauthors":[],"author_meta":{"author_link":"https:\/\/ioplus.nl\/archive\/author\/mauro-mereu\/","display_name":"Mauro Mereu"},"relative_dates":{"created":"Posted 5 years ago","modified":"Updated 5 years ago"},"absolute_dates":{"created":"Posted on November 4, 2021","modified":"Updated on November 4, 2021"},"absolute_dates_time":{"created":"Posted on November 4, 2021 2:40 pm","modified":"Updated on November 4, 2021 2:40 pm"},"featured_img_caption":"\u00a9 Aalto University","tax_additional":{"category":{"linked":["Sustainability<\/a>"],"unlinked":["Sustainability<\/span>"],"slug":"category","name":"Categories"},"post_tag":{"linked":["Aalto University<\/a>","Lignocellulose<\/a>","Research Institute of Sweden<\/a>","rise<\/a>","solar cells<\/a>","university of british columbia<\/a>","wood<\/a>"],"unlinked":["Aalto University<\/span>","Lignocellulose<\/span>","Research Institute of Sweden<\/span>","rise<\/span>","solar cells<\/span>","university of british columbia<\/span>","wood<\/span>"],"slug":"post_tag","name":"Tags"},"language":{"linked":["EN<\/a>"],"unlinked":["EN<\/span>"],"slug":"language","name":"Tags"},"post_translations":{"linked":[],"unlinked":[],"slug":"post_translations","name":""},"location":{"linked":["Finland<\/a>"],"unlinked":["Finland<\/span>"],"slug":"location","name":"Locations"},"internal_archives":{"linked":[],"unlinked":[],"slug":"internal_archives","name":"Internal Archives"}},"series_order":"","_links":{"self":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/selected\/316476","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/selected"}],"about":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/types\/selected"}],"author":[{"embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/users\/2084"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/media\/316479"}],"wp:attachment":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/media?parent=316476"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/categories?post=316476"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/tags?post=316476"},{"taxonomy":"location","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/location?post=316476"},{"taxonomy":"internal_archives","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/internal_archives?post=316476"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}